Question

您好我正在尝试更改Windows XP上的时区，我正在关注此guide。我正在使用c ++，似乎没有设置适当的权限标志。这是代码：

TIME_ZONE_INFORMATION tzInfo, tzInfoNew, tzInfoTest;
DWORD dwRet;

HANDLE hToken;
TOKEN_PRIVILEGES tkp;

OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &hToken);
LookupPrivilegeValue(NULL, SE_SYSTEMTIME_NAME , &tkp.Privileges[0].Luid);
tkp.PrivilegeCount = 1;
tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES)NULL, 0);

dwRet = GetTimeZoneInformation(&tzInfo);
std::wcout << "STANDARD NAME: " << tzInfo.StandardName << std::endl;

tzInfoNew.Bias = tzInfo.Bias + 60;
StringCchCopy(tzInfoNew.StandardName, 32, L"Nikola Time Zone");
tzInfoNew.StandardDate.wMonth = 10;
tzInfoNew.StandardDate.wDayOfWeek = 0;
tzInfoNew.StandardDate.wDay = 5;
tzInfoNew.StandardDate.wHour = 2;

StringCchCopy(tzInfoNew.DaylightName, 32, L"Nikola Daylight Zone");
tzInfoNew.DaylightDate.wMonth = 4;
tzInfoNew.DaylightDate.wDayOfWeek = 0;
tzInfoNew.DaylightDate.wDay = 1;
tzInfoNew.DaylightDate.wHour = 2;
tzInfoNew.DaylightBias = -60;


if( !SetTimeZoneInformation(&tzInfoNew ) ) 
{
    printf("STZI failed (%d)\n", GetLastError());
}
dwRet = GetTimeZoneInformation(&tzInfoTest);
std::wcout << "STANDARD NEW NAME: " << tzInfoTest.StandardName << std::endl;
std::wcout << "STANDARD NEW DAYLIGHT NAME: " << tzInfoTest.DaylightName << std::endl;

tkp.Privileges[0].Attributes = 0; 
AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES) NULL, 0);

编辑：我在我的项目中插入了这个方法，我有一些奇怪的问题。无论如何我使用以下结构：

typedef struct {
    unsigned short month;
    unsigned short week;
    unsigned short day;
} dstDate;

typedef struct {
    unsigned short hour;
    unsigned short minute;
    unsigned short second;
} dstTime;

以下是整个方法：

bool::setTimeZone(short int timeZone, short int dstOffset, dstDate& sDate, dstTime& sTime, dstDate& eDate, dstTime& eTime){
  bool res = true;

  TIME_ZONE_INFORMATION tzInfoNew;

  HANDLE hToken;
  TOKEN_PRIVILEGES tkp;

  // Get the necessary priviledge to perform time zone setting operation
  OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &hToken);
  LookupPrivilegeValue(NULL, SE_SYSTEMTIME_NAME , &tkp.Privileges[0].Luid);
  tkp.PrivilegeCount = 1;
  tkp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;
  AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES)NULL, 0);

  // Fill the TIME_ZONE_INFORMATION structure
  ZeroMemory(&tzInfoNew, sizeof(tzInfoNew));
  tzInfoNew.Bias = (LONG) -timeZone;

  // Start of DST
  // If the following six lines are executed, then setting the time zone fails
  // i.e. it goes with result status 0, but the time zone is not changed
  tzInfoNew.DaylightDate.wMonth = sDate.month;
  tzInfoNew.DaylightDate.wDayOfWeek = sDate.week;
  tzInfoNew.DaylightDate.wDay = sDate.day;
  tzInfoNew.DaylightDate.wHour = sTime.hour;
  tzInfoNew.DaylightDate.wMinute = sTime.minute;
  tzInfoNew.DaylightBias = dstOffset;

  // End of DST
  tzInfoNew.StandardDate.wMonth = eDate.month;
  tzInfoNew.StandardDate.wDayOfWeek = eDate.week;
  tzInfoNew.StandardDate.wDay = eDate.day;
  tzInfoNew.StandardDate.wHour = eTime.hour;
  tzInfoNew.StandardDate.wMinute = eTime.minute;

  if(!SetTimeZoneInformation(&tzInfoNew)) {
    printf("STZI failed (%d)\n", GetLastError());
    res = false; 
  }

  tkp.Privileges[0].Attributes = 0; 
  AdjustTokenPrivileges(hToken, FALSE, &tkp, 0, (PTOKEN_PRIVILEGES) NULL, 0);

  return (res);
}

因此SetTimeZoneInformation返回状态OK，但未设置TimeZone。只有在设置了DaylightDate信息时才会出现问题，否则就可以了。

Answer 1

我发现问题是在设置任何数据之前我没有将ZeroMemory宏用于TimeZoneInformation结构。

ZeroMemory(&tzInfoNew, sizeof(tzInfoNew));
tzInfoNew.Bias = 0;
StringCchCopy(tzInfoNew.StandardName, 32, L"Test Time Zone");
.....

我认为使用它无关紧要。但它完成了伎俩，我不太清楚为什么因为我已经设置了所有必要的信息，并且在设置时区时结构已满。

在Windows XP上更改时区

1 个答案: